Re: Can't Build Linux Kernel from Tutorial

On Mon, 24 Mar 2025, Richard Akintola wrote:

> Hello Julia,
>
> I have been trying to build the Linux Kernel via the tutorial on my
> machine to no avail.
>
> This has prevented me from making a PATCH.
>
> This is the Os and Kernel version of my machine
> OS: Parrot Security 6.3 (lorikeet) x86_64
> Kernel: 6.5.0-13parrot1-amd64

Sort of basic questions are whether you are using a VM and how much memory
you have.

Afterwards, maybe it is a configuration problems?  Are you reusing the
configuration of your host machine?  Here are some old posts on disabling
module signing:

https://stackoverflow.com/questions/29806414/how-to-disable-kernel-module-signing-in-linux
https://kernelnewbies.kernelnewbies.narkive.com/kKXLBu8C/how-to-disable-module-verification-failed-signature-and-or-required-key-missing-tainting-kernel

If you change the configuration file, do make olddefconfig afterwards to
make sure your changes are take into account.

Let me know how it goes.

julia


>
> Below is the error I got while installing the kernel build
>
> ...
>
> INSTALL /lib/modules/6.14.0-rc1custom-
> ola+/kernel/net/vmw_vsock/vmw_vsock_virtio_transport_common.ko
>   INSTALL /lib/modules/6.14.0-rc1custom-
> ola+/kernel/net/vmw_vsock/hv_sock.ko
>   INSTALL /lib/modules/6.14.0-rc1custom-
> ola+/kernel/net/vmw_vsock/vsock_loopback.ko
>   INSTALL /lib/modules/6.14.0-rc1custom-ola+/kernel/net/nsh/nsh.ko
>   INSTALL /lib/modules/6.14.0-rc1custom-ola+/kernel/net/hsr/hsr.ko
>   INSTALL /lib/modules/6.14.0-rc1custom-ola+/kernel/net/qrtr/qrtr.ko
>   INSTALL /lib/modules/6.14.0-rc1custom-ola+/kernel/net/qrtr/qrtr-
> mhi.ko
>   DEPMOD  /lib/modules/6.14.0-rc1custom-ola+
>   INSTALL /boot
> run-parts: executing /etc/kernel/postinst.d/dkms 6.14.0-rc1custom-ola+
> /boot/vmlinuz-6.14.0-rc1custom-ola+
> dkms: running auto installation service for kernel 6.14.0-rc1custom-
> ola+.
> readelf: Error: Not an ELF file - it has the wrong magic bytes at the
> start
> readelf: Error: Not an ELF file - it has the wrong magic bytes at the
> start
> readelf: Error: Not an ELF file - it has the wrong magic bytes at the
> start
> readelf: Error: Not an ELF file - it has the wrong magic bytes at the
> start
> readelf: Error: Not an ELF file - it has the wrong magic bytes at the
> start
> readelf: Error: Not an ELF file - it has the wrong magic bytes at the
> start
> readelf: Error: Not an ELF file - it has the wrong magic bytes at the
> start
> readelf: Error: Not an ELF file - it has the wrong magic bytes at the
> start
> readelf: Error: Not an ELF file - it has the wrong magic bytes at the
> start
> readelf: Error: Not an ELF file - it has the wrong magic bytes at the
> start
> readelf: Error: Not an ELF file - it has the wrong magic bytes at the
> start
> readelf: Error: Not an ELF file - it has the wrong magic bytes at the
> start
> readelf: Error: Not an ELF file - it has the wrong magic bytes at the
> start
> readelf: Error: Not an ELF file - it has the wrong magic bytes at the
> start
> Sign command: /lib/modules/6.14.0-rc1custom-ola+/build/scripts/sign-
> file
> Binary /lib/modules/6.14.0-rc1custom-ola+/build/scripts/sign-file not
> found, modules won't be signed
>
> Building module:
> Cleaning build area...
> make -j4 KERNELRELEASE=6.14.0-rc1custom-ola+ KVER=6.14.0-rc1custom-
> ola+........(bad exit status: 2)
> Error! Bad return status for module build on kernel: 6.14.0-rc1custom-
> ola+ (x86_64)
> Consult /var/lib/dkms/broadcom-sta/6.30.223.271/build/make.log for more
> information.
> Sign command: /lib/modules/6.14.0-rc1custom-ola+/build/scripts/sign-
> file
> Binary /lib/modules/6.14.0-rc1custom-ola+/build/scripts/sign-file not
> found, modules won't be signed
>
> Building module:
> Cleaning build area...(bad exit status: 2)
> kernelver=6.14.0-rc1custom-ola+ ./dkms-make.sh...(bad exit status: 2)
> Error! Bad return status for module build on kernel: 6.14.0-rc1custom-
> ola+ (x86_64)
> Consult /var/lib/dkms/realtek-
> rtl8814au/5.8.5.1~git20240527.d8208c8/build/make.log for more
> information.
> Sign command: /lib/modules/6.14.0-rc1custom-ola+/build/scripts/sign-
> file
> Binary /lib/modules/6.14.0-rc1custom-ola+/build/scripts/sign-file not
> found, modules won't be signed
>
> Building module:
> Cleaning build area...(bad exit status: 2)
> 'make' -j4 KVER=6.14.0-rc1custom-ola+ KSRC=/lib/modules/6.14.0-
> rc1custom-ola+/build...(bad exit status: 2)
> Error! Bad return status for module build on kernel: 6.14.0-rc1custom-
> ola+ (x86_64)
> Consult /var/lib/dkms/realtek-
> rtl88xxau/5.6.4.2~git20240510.b44d288/build/make.log for more
> information.
> Error! One or more modules failed to install during autoinstall.
> Refer to previous errors for more information.
> dkms: autoinstall for kernel: 6.14.0-rc1custom-ola+ failed!
> run-parts: /etc/kernel/postinst.d/dkms exited with return code 11
> make[2]: *** [arch/x86/Makefile:321: install] Error 1
> make[1]: *** [/home/laolu/Desktop/Outreachy_Contributions/Linux-
> Kernel/git/kernels/staging/Makefile:372: __build_one_by_one] Error 2
> make[1]: Target 'modules_install' not remade because of errors.
> make[1]: Target 'install' not remade because of errors.
> make: *** [Makefile:251: __sub-make] Error 2
> make: Target 'modules_install' not remade because of errors.
> make: Target 'install' not remade because of errors.
>
>
>